Can you use CSV import or mass update to attach files to transactions?

AI generated answer (using internal Slack threads):

Based on the conversations, it appears that you cannot directly use CSV import or mass update to attach files to transactions in NetSuite. However, you can achieve this through SuiteScript. You can write a script that searches for the attached file and then attaches it to the transaction. For mass updating custom transaction line fields, it's not possible via the Mass Update function as it only works for header fields. But for most transactions, you should be able to update those via CSV import. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******